62 lines
2.3 KiB
Markdown
62 lines
2.3 KiB
Markdown
---
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id: 587d7dab367417b2b2512b6e
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title: Use the every Method to Check that Every Element in an Array Meets a Criteria
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challengeType: 1
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videoUrl: ''
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localeTitle: Use cada método para verificar que cada elemento de una matriz cumple con los criterios
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---
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## Description
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<section id="description"> <code>every</code> método funciona con matrices para verificar si <em>cada</em> elemento pasa una prueba en particular. Devuelve un valor booleano: <code>true</code> si todos los valores cumplen los criterios, <code>false</code> si no. Por ejemplo, el siguiente código verificará si cada elemento de la matriz de <code>numbers</code> es menor que 10: <blockquote> números var = [1, 5, 8, 0, 10, 11]; <br> numbers.every (function (currentValue) { <br> return currentValue <10; <br> }); <br> // Devuelve falso </blockquote></section>
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## Instructions
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<section id="instructions"> Use <code>every</code> método dentro de la función <code>checkPositive</code> para verificar si cada elemento en <code>arr</code> es positivo. La función debe devolver un valor booleano. </section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: Su código debe utilizar <code>every</code> métodos.
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testString: 'assert(code.match(/\.every/g), "Your code should use the <code>every</code> method.");'
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- text: '<code>checkPositive([1, 2, 3, -4, 5])</code> debe devolver <code>false</code> .'
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testString: 'assert(!checkPositive([1, 2, 3, -4, 5]), "<code>checkPositive([1, 2, 3, -4, 5])</code> should return <code>false</code>.");'
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- text: '<code>checkPositive([1, 2, 3, 4, 5])</code> debe devolver <code>true</code> .'
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testString: 'assert(checkPositive([1, 2, 3, 4, 5]), "<code>checkPositive([1, 2, 3, 4, 5])</code> should return <code>true</code>.");'
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- text: '<code>checkPositive([1, -2, 3, -4, 5])</code> debe devolver <code>false</code> .'
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testString: 'assert(!checkPositive([1, -2, 3, -4, 5]), "<code>checkPositive([1, -2, 3, -4, 5])</code> should return <code>false</code>.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function checkPositive(arr) {
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// Add your code below this line
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// Add your code above this line
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}
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checkPositive([1, 2, 3, -4, 5]);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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